def test_update_existing_to_mappings_ignores_mapping_with_empty_symbol(self): old = SymbolsMap({"a": "a"}) old.update_existing_to_mappings({"a": ""}) self.assertEqual(1, len(old)) self.assertEqual("a", old["a"])
def test_update_existing_to_mappings_overwrites_empty_mapping(self): old = SymbolsMap({"a": ""}) old.update_existing_to_mappings({"a": "a"}) self.assertEqual(1, len(old)) self.assertEqual("a", old["a"])